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View Full Version : thoughts on chinese LEDs



Levi
09-15-2013, 09:54 PM
http://www.aliexpress.com/store/product/2013-New-Dimmable-Aquarium-Led-Light-Artemis-72W-24x3W-Sunrise-Sunset-Programmable-Remote-Coral-Reef-Led/411906_844030852.html

I spoke with their customer service and I can do any layout I wish basically, the combined shipping for 4 units to hang over a standard 90g is 125 and they will discount each unit by $20 if I buy 4 at one time.

I like that I can set the timers different and make a true sunrise and sunset effect while increasing the intensity of the leds at the same time.

I was going to get the RB 48" photon but with the center brace and the side to side effect I wanted to go with multiple units instead of just 1 long unit. The cost of getting 2x of the 24" photon is much more than the 48" so I can stay in the $525 range and get 4 programmable units.

Thoughts?

89delta
09-15-2013, 10:43 PM
Looks good, i've never had any issues with bridgelux leds at all. If you like those look at THIS (http://www.alibaba.com/product-gs/1073325629/CE_RoHS_conform_of_led_cree.html). I actually fixed three of these units for Joe and I am very impressed with the light output and 6-point control-ability across 3 channels (whites,blues and moon leds). Am thinking of getting two of these for my next project on the list after the 40B.

Levi
09-16-2013, 12:22 AM
will they do full spectrum customs? also when I was reading about those it looks like the controller is for just timers and the knobs actually do all of the dimming manually, I want to do sunrise/sunset type of auto dimming.

89delta
09-16-2013, 09:05 AM
There are a few companies on there that will do full spectrum. The timer has 6 points of brightness control for your sunrise sunset effects as well as for the three moon lights. With this model I believe the knobs are also there to fine tune your colors, but I could be mistaken. Here is another Link (http://twilightgroups.en.alibaba.com/product/593446704-212793286/Dimmable_Best_light_for_coral_reef_finsh_tank_120w _led_aquarium_light.html) to the same supplier that offers you the color choices. Here is another link (http://twilightgroups.en.alibaba.com/product/1327553106-213269055/Aquarium_LED_Light_60cm_120W_Sea_Marine_Reef_Fish_ Coral_Aqua_Tank_Blue_White.html). If you need optics to they have 90 and 60 degree also. Even with these being run at 2W i'll never make the mistake of hitting the power button for full-on again while looking at the LEDs. I couldn't see for 5 minutes.....lol

Levi
09-16-2013, 01:31 PM
what about this http://www.alibaba.com/product-gs/1150276701/New_Malibu_S120_aquarium_led_light.html

they use meanwell drivers and can pick between cree xpe or bridgelux leds. I like that you can daisy chain them. Near the bottom is the actual product picture so you can see the layout of the 40 LED's. I emailed them for a price quote on 4 units and a 48" or 1.2M aluminum rail kit and the wired controller. 4 channels and 8 points on each channel with complete custom spectrum and LED placement.

I like how thin they are as well, now just to find out the price. I really do like the 8 points per channel as you can really get creative using multiple units and times to get a great effect both sunrise, sunset and lunar cycle.

89delta
09-16-2013, 01:40 PM
Those are nice too....I forgot to add it to my favorites on my acct....lol.

Levi
09-16-2013, 01:45 PM
if you daisy chain them will you end up with essentially 1 long light with 4 channels and 8 points per channel? What I want is 4 lights with 16 channels and 8 points per channel... basically so I can do the side to side effect with sunrise and sunset. I think it is a cool effect and something I have liked since I saw it on a macna video

89delta
09-16-2013, 02:00 PM
I'm not sure if they use an analog or pwm dimming signal for their lights. But if you're looking for 16-channels you're gonna have to figure out the connections for their controller and get the StormX by Coralux. Or just get 4 separate units with the controller and offset each one.

Levi
09-16-2013, 09:02 PM
I figured if I looked long enough I could find the actual Reef Breeders light directly from the Chinese manufacturers... big price difference

http://www.alibaba.com/product-gs/1107355424/120watt_aquarium_reef_led_lighting_used.html

it even uses a quote from the forums where someone is saying thanks to RB so for sure this is the exact same light

the 180w that has 60 LED is $190 shipped and it is full spectrum free of charge, you pick the layout. You can use 460nm, 450nm, 2700-20000k whites, 660nm, 420nm, 530nm, 580nm, and UV. It says a minimum of 10 pieces but they will sell less you just have to ask.

there is also http://www.alibaba.com/product-gs/638903713/aquarium_led_lighting_dimmable.html which has the universal plug to connect multiple units like the RB one

Joe
09-16-2013, 11:10 PM
Be sure to get a good quote on the shipping and see if you can find out what the customs fee will be. The customs fee will probably be a COD charge you have to pay when UPS or whomever delivers it. Also factor in the fee for processing your payment to get a true cost before you commit to buy direct from China. I did a direct buy before and the total cost was cheaper than buying from a US supplier, but shipping one light back to china for repair once would have eaten any savings away.

The lights 89Delta fixed for me (because I got them wet) will be for sale, I just won't get time to post them until next week. If you want to check them out, you are welcome to stop by next week. I have a bunch of stuff I need to post.

Levi
09-17-2013, 12:36 AM
good point, I have not yet checked into what the customs fee will be. I have the stand for a 75g and a 40g long sump for it as well as a 40B and 20L for a fowlr setup and would like to get the same lights for both tanks so that it all looks uniform. any way to figure out what the customs fee will be? I was quoted 160 total in shipping for 4 units to my works address. if you use PayPal is it 2% or 3% for the fee? so far without the customs fee but with 3% for PayPal it is still under 800 for 4 units and they are the same ones as the photon 16 so that is compared to $1280. My mother works for a company that does a ton of shipping with FedEx including international so she gets a huge discount and she priced it for me at under $40 per unit to ship back incase of warranty issue.

89delta
09-17-2013, 01:52 AM
Am talking with a sales manager now and i'll ask him what the average customs fee is....never even thought of that even after ordering so many electronics parts from there without issues.